Question No : 8
The magnitude of the induced emf in a coil is directly proportional to the rate of change of flux linkages. This is known as
Question No : 9
Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
Question No : 10
The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
Question No : 11
The force of attraction or repulsion between two magnetic poles is inversely proportional to the square of the distance between them. This is known as
Question No : 12
Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as
Question No : 13
A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing the induction.
Question No : 14
A law that states that the current in a thermionic diode varies directly with the three- halves power of anode voltage and inversely with the square of the distance between the electrodesa provided operating conditions are such that the current is limited only by the space charge.